On Tue, Feb 26, 2013 at 05:51:13PM +0100, Maxime Ripard wrote:
> The roundup_pow_of_two function is making use of __roundup_pow_of_two
> when the call to __builtin_constant_p fails, which is not implemented in
> barebox.
>
> Copied the code from Linux log2.h header.
>
> Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
Applied, thanks
Sascha
> ---
> include/linux/log2.h | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/include/linux/log2.h b/include/linux/log2.h
> index 389043a..d9913f0 100644
> --- a/include/linux/log2.h
> +++ b/include/linux/log2.h
> @@ -54,6 +54,15 @@ bool is_power_of_2(unsigned long n)
> return (n != 0 && ((n & (n - 1)) == 0));
> }
>
> +/*
> + * round up to nearest power of two
> + */
> +static inline __attribute__((const))
> +unsigned long __roundup_pow_of_two(unsigned long n)
> +{
> + return 1UL << fls(n - 1);
> +}
> +
> /**
> * ilog2 - log of base 2 of 32-bit or a 64-bit unsigned value
> * @n - parameter
> --
> 1.7.10.4
>
>
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>
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